Improvement in portable furnaces for evaporators



I I 28h t-Sh n. W ERS & J. M; BOWIE. 68 s PORTABLE FURNACES-FOR E-VAP-ORATORS. No. 180,677.

Patented Au l, 1876.

N.FETERS, PHOTO-LITHQGRAFHER. WASHINGTON, D, C-

FT ENITED QFFICE.

WILLIAM M. TOWERS-AND J QHN M. BOWI-E, OF ROME, GEORGIA.

'lMPROVE M-ENT IN PORTABLE FURNACES FOR EVAPORATORS.

Specification forming part of Letters PatentN0. l80,677-, dated August 1, 1876; application filed June. 14, 1876.

' ToalLwhom it may concern:

declare that the following is a full, clear, and

exact: description thereof, reference being bad to the accompanying drawings, making a part 7 of this specification, in which- Figure 1 is a perspective view of our improved device as arranged for use, the dotted lines showing changes of position from a horizontal line; and Figs. 2 and 3 are, respectively, vertical central sections upon longitudimal and transverse lines.

Letters of like name and kind refer to like parts breach of the figures.

The design of our invention is to increase .the facility and ease with which portable mechanism for use in evaporating cane-juice, salt-water, 860., may be operated; and

It consists, principally, in an evaporating pan or furnace, suspended at its longitudinal center and upper side upon a pivotal bearing, :and capable of being oscillated .thereo'n, so as to depress each end, substantially as and for the purpose hereinafter specified.

Itconsists, further, in the peculiar construction of the pivotal supporting-frame, sub- =stantially as and for the purpose hereinafter :shown.

It consists further, inthe means employed ffor'securi'ng the pan or furnace in position at :any desired angle with relation to the horizon, substantially as and for the purpose herein- :afterset forth.

It consists, finally, in the apparatus as a whole, its several parts being constructed and combined to operate in the manner and for the purpose substantially as is hereinafter shown and described.

In the annexed drawings, A represents a pan, which has a length equal to several times its breadth, and is, preferably, made semicircular transversely upon its lower side. The pan A may be employed for the reception of the liquid to be evaporated, or it may constitute the furnace therefor, and the liquid-pan be placed within its upper open side, as is desired; but in the latter case a fuel-door, B, is

end, while. atthe opposite end is provided a 'thimble, D, forthe reception of a smoke-pipe. ThapanA issupported by or within a frame which is composed of two arch-shaped bars, E and-E, thatare arranged in parallel; lines with their. convexedges upward, and: are socured together by means of three rods, F, which extend through their central and end portions, and areeach'threaded at each. end, and provided with two nuts, f and f, that bear upon opposite faces of the bar E through which such end passes. The pan Ais suspended upon the central rod F, between the bars E and E, said rod passing through the sides of said pan near their upper edges and at their longitudinal-centers, by which arrangement said pan is permitted to oscillate motion similar to that of'a pendulum, and

easily controlled.

The objects sought by thus pivoting the pan centrally are, first, to enable it to be leveled up while the supporting-frame rests upon uneven or sloping ground; second, to enable.

the pan, when used as a continuous evaporator, to be placed at such angles as will cause the liquid being evaporated to flow with more or less rapidity from the end at which it-enters to the point of discharge and, third, to enable the contents of such pan to be readily discharged and its interior easily cleansed.

In order that the pan A maybe secured in position, when adjusted, a bar, Gr, provided with a longitudinal slot, 9, which extends nearly to each end, is pivoted at one end to or upon one side of said pan, at its end, and from thence extends inward and downward by the side of the outer face of the contiguous portion of one of the frame-bars E. A setscrew, H, passing through said slot g, with its inner threaded end contained within a correspondingly-threaded opening in said framebar E, and its head h bearing upon the outer face of bar G, enables the latter to be pressed with such firmness against said frame-bar as to prevent all motion, and to lock said pan in place. \Ne preferably employ two lockingbars, and arrange the same at one end and upon opposite sides of the pan; but, if desired, said locking-bars may be arranged upon the same side of said pan, or four bars may be used, and one pivoted upon each corner of the latter.

The app aratusdescribed 1n ay be taken apart, and the frame and locking-bars placed within the pan whenever it is necessary that less bulks should be had, as during transportation and for storage, while to reinount said pan, and to arrange it for use, require but little time or labor.

Having thus fully set forth the nature and merits of our invention, what We claim as new 1s 1. An evaporating-pan, or a furnace for supporting the same, suspended at its longitudinal center and upper side upon a pivotal bearing, and capable of being oscillated there. on, substantially as and for the purpose specified.

2. In combination with the pan A, the arched bars F and E, rods E, and nutsf, substantially as and for the purpose shown.

3. In combination With the centrally-pivoted pan A, the bar Gr, provided with a longitudinal slot, 9, and pivoted at one end to or upon said pan, and theset-screw H, passing through said slot, and engaging with the framebar E, substantially as and for the purpose set forth.

4. The pan A, frame-bars E, rods F, nuts f, slotted bars G g, and set-screws H, all constructed and combined in the manner and for the purpose substantially as shown and described.

In testimony that we claim the foregoing we have hereunto set our hands this 29th day of May, 1876.

l W. M. TOWERS.

JNO. M. BOWIE.

Witnesses SAML. S. STONE,

J. SINCLARE. 

